BTS | Table B-10. Estimated Measures of Reliability for Shipment Characteristics by Commodity Group for State of Origin: 2002 and 1997

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BTS Home > Publications > Commodity Flow Survey > States > Kansas

Table B-10. Estimated Measures of Reliability for Shipment Characteristics by Commodity Group for State of Origin: 2002 and 1997

[Estimates are based on data from the Commodity Flow Survey. Because of rounding, estimates may not be additive]

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Code	Commodity (2-digit SCTG)	Value			Tons			Ton-miles			Average miles per shipment
Code	Commodity (2-digit SCTG)	CV 2002	CV 1997	Std. error of percent change 1997-2002	CV 2002	CV 1997	Std. error of percent change 1997-2002	CV 2002	CV 1997	Std. error of percent change 1997-2002	CV 2002	CV 1997	Std. error of percent change 1997-2002
	All Commodities	6.6	6.3	11.8	16.3	5.3	23.6	14.2	8.3	15.8	15.0	10.9	29.8
01-05	Agriculture products and fish	9.5	16.2	22.9	21.6	8.4	32.4	23.6	16.9	31.3	49.3	29.4	46.7
06-09	Grains, alcohol, and tobacco products	17.3	10.5	19.1	29.6	13.5	46.9	26.8	25.5	46.5	31.1	46.3	41.8
10-14	Stones, non-metallic minerals, and metallic ores	38.6	26.2	47.5	25.9	20.7	49.3	40.1	20.2	40.8	39.1	21.1	35.7
15-19	Coal and petroleum products	22.7	17.3	38.5	25.2	22.1	36.5	26.3	27.8	14.7	37.1	31.1	20.4
20-24	Pharmaceutical and chemical products	21.5	7.5	23.5	20.9	18.7	15.3	26.5	24.2	13.4	21.4	11.8	35.3
25-30	Logs, wood products, and textile and leather	40.1	35.4	57.2	11.3	13.1	9.4	29.5	21.3	20.9	10.2	11.8	26.2
31-34	Base metal and machinery	31.9	5.7	39.2	40.7	9.8	101.2	38.1	10.9	90.2	22.1	16.7	29.2
35-38	Electronic, motorized vehicles, and precision instruments	9.0	17.3	30.3	30.0	14.0	96.2	22.9	20.4	59.8	23.7	16.8	37.0
39-43	Furniture, mixed freight and misc manufactured products	17.2	9.2	36.9	17.5	20.3	41.2	24.5	17.8	53.1	15.3	13.6	25.8
--	Commodity Unknown	32.0	42.0	15.4	S	S	S	40.8	S	S	30.8	38.3	55.1

KEY:
– Represents data cell equal to zero or less than 1 unit of measure.
S Estimate does not meet publication standards because of high sampling variability or poor response quality.
CV Coefficient of variation of number

NOTE: The Introduction and appendixes give information onf confidentiality protection, sampling error, nonsampling error, sample design, and definitions. Links to this information on the Internet may be found at www.census.gov/cfs.

SOURCE: Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Individual State Data, December 2004.